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Wrote empty definitions for some APIC functions

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Started x86 interrupt setup code
This commit is contained in:
ngiddings
2021-04-14 20:23:13 -05:00
parent 3130b07fd1
commit 8851243f19
3 changed files with 51 additions and 7 deletions
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27
src/x86/quark_x86.c
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@@ -2,14 +2,19 @@
#include "pageallocator.h"
#include "multiboot2.h"
#include "memorymap.h"
#include "apic.h"
#include "interrupts.h"
#include "stdio.h"
#include "string.h"
#include "module.h"
#include "isr.h"
#include <stdint.h>
#include <stddef.h>
extern int _kernelEnd;
struct apic_registers_t volatile *apic_registers;
int startPaging(uint32_t *directory, uint32_t *table, uint32_t *identityTable)
{
for (int i = 0; i < 1024; i++)
@@ -60,15 +65,29 @@ int initialize(void *multiboot_info)
{
printf("%i\t\t\t%08x\t\t%u\n", boot_info.map.array[i].type, boot_info.map.array[i].location, boot_info.map.array[i].size);
}
page_stack.base_pointer = 0xFFC00000;
page_stack.stack_pointer = 0xFFC00000;
page_stack.limit_pointer = 0xFF900000;
page_stack.base_pointer = (physaddr_t*)0xFFC00000;
page_stack.stack_pointer = (physaddr_t*)0xFFC00000;
page_stack.limit_pointer = (physaddr_t*)0xFF900000;
initialize_page_stack(&page_stack, &boot_info.map, 4096);
for(int i = 0; i < boot_info.module_count; i++)
{
load_module(&kernel, &boot_info.modules[i]);
}
// TODO: setup IDT
memset(idt, 0, sizeof(struct interrupt_descriptor_t) * 256);
create_interrupt_descriptor(&idt[EXCEPTION_DIV_BY_0], (void*)isr_division_by_zero, INTERRPUT_INT32, 3);
create_interrupt_descriptor(&idt[EXCEPTION_GPF], (void*)isr_gp_fault, INTERRPUT_INT32, 3);
create_interrupt_descriptor(&idt[EXCEPTION_PAGE_FAULT], (void*)isr_page_fault, INTERRPUT_INT32, 3);
create_interrupt_descriptor(&idt[EXCEPTION_DOUBLE_FAULT], (void*)isr_double_fault, INTERRPUT_INT32, 3);
create_interrupt_descriptor(&idt[0x80], (void*)isr_syscall, INTERRPUT_INT32, 3);
// TODO: setup APIC
asm volatile(
"mov $0xFF, %%al;"
"outb %%al, $0xA1;"
"outb %%al, $0x21;"
::: "al"
);
apic_enable();
// TODO: enter first process
}